The Harz Railway or Trans-Harz Railway () was formerly the main line of the Harz Narrow Gauge Railways (Harzer Schmalspurbahnen or HSB) and runs north to south right across the Harz Mountains from Wernigerode to Nordhausen. However, the tourist attraction of the Brocken, the highest mountain in the Harz, is so great that the Brocken Railway is effectively the main line today. The Trans-Harz Railway joins up with the Selke Valley Railway to Quedlinburg at Eisfelder Talmühle where all trains are organised to make good connections. Route The line begins at the HSB's narrow gauge station in Nordhausen (Nordhausen Nord). It lies in northwest of and parallel to the standard gauge railway station. After passing the link line to the Nordhausen Tramway that joins it from the right, the railway bends towards the north and runs for 7 km to the station of Niedersachswerfen Ost almost parallel to the standard gauge line from Nordhausen to Ellrich (the South Harz Line). The Harz mountains begin beyond Ilfeld (km 10.7). Behind Netzkater (km 14.0) lies the station of Eisfelder Talmühle (km 17.3), where the Selke Valley Railway branches off in a curve to the right. The Trans-Harz Railway continues to follow the B 81 federal road as far as Tiefenbachmühle halt (km 19.5) before turning in a westerly direction in order to reach the request stop of Sophienhof (km 21.0), the last stop in Thuringia. The line runs through spruce forests over the state border with Saxony-Anhalt. At Benneckenstein station (km 29.8) the line crosses the ridge at , its highest point so far. It then runs downhill into the valley of the Warme Bode, where the halt of Sorge (km 33.4; ) is located. Next the route climbs to its next summit at 557 m. After Elend (km 41.6) the line reaches the junction with the Brocken Railway at Drei-Annen-Hohne station (km 46.4). In 2009 the construction of a new stub line from Elend to Braunlage was discussed (see South Harz Railway Company). Behind Drei-Annen-Hohne the line runs steeply downhill and the railway reaches the 58 m long tunnel below the Thumkuhlenkopf. It is the only tunnel in the Harz Narrow Gauge Railway network. On emerging from the tunnel Wernigerode Castle can soon be seen in the distance. In the vicinity of the station at Steinerne Renne (km 54.5) the line enters one of the HSB's tightest curves with a 60-metre